42271566 has 16 divisors (see below), whose sum is σ = 85017600. Its totient is φ = 14011448.

The previous prime is 42271549. The next prime is 42271577. The reversal of 42271566 is 66517224.

It is a super-3 number, since 3×42271566³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18606 + ... + 20753.

It is an arithmetic number, because the mean of its divisors is an integer number (5313600).

Almost surely, 2^42271566 is an apocalyptic number.

42271566 is an abundant number, since it is smaller than the sum of its proper divisors (42746034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42271566 is a wasteful number, since it uses less digits than its factorization.

42271566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39543.

The product of its digits is 20160, while the sum is 33.

The square root of 42271566 is about 6501.6587114366. The cubic root of 42271566 is about 348.3502386175.

The spelling of 42271566 in words is "forty-two million, two hundred seventy-one thousand, five hundred sixty-six".